My hen 1 yr old, started limping, so we have seperated her. She has food and water in a big dog crate. She now isn't walking and just tips forward. Her right leg goes forward and the left is kind of going backwards. I had examined her feet and joints as much as I can tell they are okay. She will eat fine when we are right there, but can't move to her food by herself. The problem is we have had the worst time with the chickens we got last year, thirteen to start with and she is one of the last two. we have never had this kind of trouble before. I thought we were doing okay because we hadn't lost any for a couple of months. Now this. They have a 6' by 10' hen house with a 20 x20 run outside. they eat layena, have fresh water and oyster shell available. I just don't know what to do.